package com.atguigu.gulimall.product.app;

import java.util.Arrays;
import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import com.atguigu.gulimall.product.entity.CategoryEntity;
import com.atguigu.gulimall.product.service.CategoryService;
import com.atguigu.common.utils.R;


/**
 * 商品三级分类
 *
 * @author ÍõÈ½ê¿
 * @email daki9981@qq.com
 * @date 2021-08-14 12:15:03
 */
@RestController
@RequestMapping("product/category")
public class CategoryController {
    @Autowired
    private CategoryService categoryService;

    /**
     * 查出所有分类以及子分类，以树形结构组装起来
     * 列表
     */
    @RequestMapping("/list/tree")
    //@RequiresPermissions("product:category:list")
//    public R list(@RequestParam Map<String, Object> params){
    public R list() {
        //PageUtils page = categoryService.queryPage(params);
//        List<CategoryEntity> list = categoryService.list();
        List<CategoryEntity> entities = categoryService.listWithTree();
        return R.ok().put("data", entities);    //data最终的返回数据
//        return R.ok().put("page", page);
    }


    /**
     * 信息
     */
    @RequestMapping("/info/{catId}")
    //@RequiresPermissions("product:category:info")
    public R info(@PathVariable("catId") Long catId) {
        CategoryEntity category = categoryService.getById(catId);

        return R.ok().put("data", category);
    }

    /**
     * 保存
     */
    @RequestMapping("/save")
    //@RequiresPermissions("product:category:save")
    public R save(@RequestBody CategoryEntity category) {
        categoryService.save(category);

        return R.ok();
    }

    /**
     * 批量修改层级
     *
     * @param category
     * @return
     */
    @RequestMapping("/update/sort")
    //@RequiresPermissions("product:category:update")
    public R updateSort(@RequestBody CategoryEntity[] category) {
//        categoryService.updateById(category);
        categoryService.updateBatchById(Arrays.asList(category));   //将category数组通过Arrays.asList()转成集合

        return R.ok();
    }

    /**
     * 修改
     */
    @RequestMapping("/update")
    //@RequiresPermissions("product:category:update")
    public R update(@RequestBody CategoryEntity category) {
//        categoryService.updateById(category);
        categoryService.updateCascade(category);

        return R.ok();
    }

    /**
     * 删除
     *
     * @RequestBody：这个注解就是想要获取请求体，必须发送POST请求（Get请求是没有请求体的） SpringMVC会自动将请求体中的数据（一般是JSON）,转为对应的对象
     */
    @RequestMapping("/delete")
    //@RequiresPermissions("product:category:delete")
    public R delete(@RequestBody Long[] catIds) {

        //1、 检查当前删除的菜单，是否被别的地方引用
        //categoryService.removeByIds(Arrays.asList(catIds)); 逆向生成的

        //自定义的方法
        categoryService.removeMenuByIds(Arrays.asList(catIds));

        return R.ok();
    }

}
